Pencil-sharpener and point-protector



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(No Model.) 7

J. T. MUNDY.

PENCIL SHARPENER AND POINT PROTEGTQR. No. 530,789.

Patented Dec. 11, I894.

PETERS 00., Puqraumc WASHINGTON a c.

UN llTE STATES PATENT rrrcn.

.JUDSON T.- MUNDY, OF NEWARK, NEW JERSEY.

PENClL-SHARPENER AND POINT-PROTECTOR.

SPECIFICATION ,forming part of Letters Patent No. 530,789, datedDecember 11, 1894.

Application fil d April '25, 1894. Serial No. 509,040. (No model.) i

To all whom it may concern:

Be it known that I, J nnson T. MUNDY', a citizen of the United States,residing at Newark, in the county of Essex, inthe State of New Jersey,have invented a certain new and vuseful Improvement in Pencil-Sharpenersand Point-Protectors,of which the following is a specification, and inwhich like numerals of reference indicate corresponding parts in all ofthe figures of the drawings.

My invention relates to improvements in pencil sharpeners and pointprotectors, and has particular reference to that class of such devices,in which the sharpener is adapted to be placed on the pencil, the pencilsharpened until the point projects beyond the end of the sharpener, thesharpener to remain on the pencil while writing, and when the pencil isput into the pocket, the sharpener is pushed forward far enough so thatthe tip of the pencil will be covered, and thus prevent its breaklng.

The object of my invention is to provide such a device as will be simplein operation, durable in construction, neat in appearance, and whichwill not present any points or uneven surfaces which would be liable tocatch in the clothing of the person in whose pocket the pencil rests.

To these ends, my invention consists in the improved construction andcombination of parts, as more particularly described and pointed out inthe-claims.

In the drawingsz-Figure 1 is a perspective view of my improved device.Fig. 2 is a vertical section of the same, showing it attached to apencil. Fig. 3 is a horizontal section of the same, taken through thelead shaving knife, looking downward. Fig. 4 is a horizontal section ofthe same, taken through the wood-cuttin g knife, looking upward; andFig. 5 is a detail of the wood cutting knife.

Referring to the drawings, 1 designates the point protector of mydevice, which is composed of a short cylindrical portion, attached toand forming a part of the main portion 2 of the sharpener. Thiscylindrical portion has an opening 3, of the same size as the lead ofthe pencil is, when it is ready to be used. The advantage of thisconstruction will hereinafter appear.

The main portion 2,011 the sharpener, is

made cone-shaped, and is adapted to contain the wood-cutting and leadshaving knives, as clearly shown in Fig. 1. At the base of thecone-shaped portion is an enlarged band portion 4:,integral with saidmain portion2, for the purpose of forming a means for the easy turningof the device when sharpening a pencil. This band portion has its outeredge roughened to afford a better grip for the tingers. Attached to andforming a part of the band portion is a clamping portion 5, consistingof a cylindrical portion 6, having two or more fingers projectingdownward, each of said fingers being adapted to clamp against the penciland hold it in position in the sharpener.

7 designates the wood cutting knife, which is secured in the mainportion 2, at a slight angle from the center. This Wood cutting knife isof curved shape, as shown in Fig. 5, and is adapted to shave the woodenportion of the pencil, so that the lead portion alone remains, theshavings of the wood passing out through the opening 8, as shown in Fig.

.4. This knife, owing to its curved form, will cut'the pencil evenly andcut a clean straight shaving.

'9 designates the lead-shaving blade, which is adapted to be secured-tothe main portion near the apex of the cone, and consists of the ordinaryknife used in pencil sharpeners. The purpose of this knife is to cut orshave the lead to asmaller size, the part shaved oif passing out throughthe opening 10.

The main portion of the sharpener, has an opening 11, passing throughits center, from the top .end of the knife 7 to the lower end of theknife 9, of slightly larger diameter than the opening 3, its size beingsuch as to allow of the lead passing easily therethrough, as clearlyshown in Fig. 2.

It is obvious that, owing to the fact that the two knives are locatedsome distance apart, the part 12 of the main portion 2, will form asupport for the lead, which will serve to keep the same from beingeasily broken, and the point protector 1, will serve to keep the leadfrom breaking after it passes the lead shaving knife 9.

The operation of the device is'obvious from the above description takenin connection with the drawings, and it is therefore not 7 deemednecessary to further describe the operation.

Having thus described my invention, what I claim as new is- 1. A pencilsharpener and point protector, comprising in its construction, acone-shaped main portion, having secured integrally therewith a pointprotector having an opening extending therethrough; a lead-shaving knifesecured to said main portion near its top, the edge of said knife beingadapted to shave the lead at a slight angle; an opening extendingthrough said main portion, of slightly larger diameter than that in thepoint protector; a curved wood-cutting knife secured to said mainportion at its base, the edge of which extends in a gradual curve, fromthe inner side of said main portion at its base, to the edge of saidopening in the main portion; an enlarged band integrally formed withsaid main portion; and a clamping portion adapted to clasp a leadpencil, substantially as described.

2. In a pencil sharpener and point protector, the combination of thepoint protector 1, having opening 3; the conical main portion 2 securedto said point protector; lead-shaving knife 9 secured in said mainportion near its top; wood'cutting knife 7 secured in said main portionnear its base; the opening 11, passing through said main portion fromthe top of said Wood cutting knife 7 to said leadshaving knife 9, saidopening being of slightly larger diameter than the opening 3; theenlarged band portion 4, formed integrally with said main portion; andthe clamping portion 5, consisting of the cylindrical portion 6, and thefingers extending downwardly therefrom, the whole being adapted toembrace a leadpencil, substantially as described.

In testimony whereof I have hereunto set my hand this 14th day of April,1894.

JUDSON T. MUNDY.

Witnesses:

DANIEL POSTILL, S. PERIT RAWLE.

